anaclastics

== English == === Etymology === See anaclastic and -ics. === Noun === anaclastics (uncountable) The part of optics that deals with the refraction of light. ==== Synonyms ==== dioptrics === References === “anaclastics”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.